Frequently Asked Questions

We recommend regular cleaning to ensure its lasting brilliance. Avoid exposing your jewelry to harsh chemicals and extreme temperatures. Please visit our jewlery care section to learn more. 

At Lumière, we are committed to providing our customers with the highest possible quality, ensuring that our jewelry is crafted to last and be treasured for years to come.

This commitment is why we exclusively use 18k gold, a superior alloy that blends 75% pure gold with 25% other metals such as copper and silver. This specific composition not only boosts the gold’s durability and hardness, making it ideal for everyday wear, but it also retains the deep, warm luster associated with pure gold. 18k gold strikes the perfect balance between purity and practicality, ensuring that our pieces are both breathtaking and resilient. In contrast, 14k gold, which contains only 58.5% gold, has a subtler color and less vibrancy. While 24k gold is more vibrant due to its higher purity, it is also more malleable and prone to damage from knocks and bumps.

By choosing 18k gold, we provide our customers with the best of both worlds: durability and undeniable luxury.

Absolutely not! At Lumière, our jewelry is crafted to last a lifetime. We use solid 18k gold—not vermeil or gold-plated—ensuring our pieces are robust enough for everyday wear. You can confidently wear our jewelry all day, every day, whether you’re working out, showering, or sleeping.

No, we do not use vermeil or plated gold. Lumière is committed to the highest standards of quality, which is why we exclusively use solid 18k gold in all our pieces. This choice ensures our jewelry not only looks luxurious but also stands the test of time.

Your Lumière piece is designed to last a lifetime.

While it is safe to wear your jewellery in the shower, we recommend removing it before swimming, especially in chlorinated or saltwater, as these environments can be harsh on metals and might dull the sparkle of your diamonds. To ensure your piece remains in excellent condition, we recommend avoiding exposure to harsh chemicals and extreme temperatures.

Yes, Lumière exclusively features lab-grown diamonds. We choose these diamonds for their sustainability and ethical advantages, as they are produced in a way that’s gentler on the planet. Not only are they more affordable, but our controlled manufacturing process often surpasses the clarity and color of mined diamonds, consistently offering you superior quality and exceptional value.

Yes, every diamond piece of jewelry you purchase from Lumière comes with a GIA or IGI certificate of authenticity. This certificate ensures that your item has undergone rigorous quality control checks, confirming its authenticity and high quality.

At Lumière, we pride ourselves on the exceptional quality of our diamonds. Each of our lab-grown diamonds is GIA or IGI certified, ensuring they meet the highest standards of clarity, color, cut, and carat weight.

clarity: VS1, VVS2, VVS1

color: D, E, F

cut: excellent

No, lab-grown diamonds, like their natural counterparts, exhibit a range of colors and clarities because they are created by emulating natural conditions. This means that lab diamonds also vary according to the 4Cs—color, clarity, cut, and carat. However, at Lumière, we exclusively offer lab-grown diamonds that meet exceptionally high standards.

Yes, absolutely. Our lab-grown diamonds are 100% real diamonds with the same physical, chemical, and optical properties as mined diamonds. The only difference is their origin. Lumière diamonds are grown in a controlled laboratory environment using advanced technological processes that replicate the natural diamond-growing conditions.

Identifying the differences between mined and lab-grown diamonds requires specialized equipment that is typically found only in professional gemological laboratories. To the naked eye, both types of diamonds appear identical, reflecting the same level of sparkle and beauty.